The answer is: No, ER70S-6 wire is not fully copper. It is a mild steel wire with a thin copper coating.Here’s a detailed breakdown:1. The Core: Steel AlloyThe vast majority of the wire's mass (over 98%) is a steel alloy. The "ER70S-6" classification tells us exactly what this steel is made of:ER: S
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Aluminum Welding Wire ER4043 VS ER5356,which one should you choose?
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3D Printing with SZESHANG Aluminum Welding Wire: Where Innovation Meets VersatilityEngineered to excel beyond traditional welding, SZESHANG aluminum wire unlocks new frontiers in metal 3D printing. Seamlessly transition from design to functional prototypes—directly from the spool—using a material de